GB1511310A - Method of loosening cellulose fibres - Google Patents

Method of loosening cellulose fibres

Info

Publication number
GB1511310A
GB1511310A GB3885675A GB3885675A GB1511310A GB 1511310 A GB1511310 A GB 1511310A GB 3885675 A GB3885675 A GB 3885675A GB 3885675 A GB3885675 A GB 3885675A GB 1511310 A GB1511310 A GB 1511310A
Authority
GB
United Kingdom
Prior art keywords
lignocellulosic material
fibres
treatment
water
sept
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB3885675A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mo och Domsjo AB
Original Assignee
Mo och Domsjo AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mo och Domsjo AB filed Critical Mo och Domsjo AB
Publication of GB1511310A publication Critical patent/GB1511310A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/32—Defibrating by other means of waste paper
    • D21B1/325—Defibrating by other means of waste paper de-inking devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/64—Paper recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)

Abstract

1511310 Subjecting wet lignocellulosic material to microwave energy treatment MO OCH DOMSJO AB 22 Sept 1975 [27 Sept 1974] 38856/75 Headings D2A and D2W A method of loosening or separating cellulose fibres in water - containing lignocellulosic material comprises subjecting disintegrated water - containing lignocellulosic material to microwave energy of such intensity and under such conditions that the water present in the lignocellulosic material is vapourised so rapidly as to reduce the lignocellulosic material at least partly to pulp without shortening the fibres to any appreciable degree and without damaging the fibres in any other way. In an example, pine chips having a moisture content of 70% were treated in a wave guide with microwave radiation, the temperature of the chips at the beginning of the treatment being at 100‹C. The wave guide was connected to a microwave generator having a power output of 5MW at a frequency of 2450MHz. The treatment can be effected at a pressure above, at. or below atmospheric pressure. The lignocellulosic material may be in chip form, or it may be wood whose fibres have been partially loosened by means of a defibrating device, or by a chemical or physical treatment. The lignocellulosic material may be subjected to a preheating process.
GB3885675A 1974-09-27 1975-09-22 Method of loosening cellulose fibres Expired GB1511310A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7412207A SE385027B (en) 1974-09-27 1974-09-27 PROCEDURE FOR RELEASING CELLULOSIAN FIBERS

Publications (1)

Publication Number Publication Date
GB1511310A true GB1511310A (en) 1978-05-17

Family

ID=20322254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3885675A Expired GB1511310A (en) 1974-09-27 1975-09-22 Method of loosening cellulose fibres

Country Status (10)

Country Link
US (1) US4000032A (en)
JP (1) JPS5443601B2 (en)
BR (1) BR7506148A (en)
CA (1) CA1056559A (en)
DE (1) DE2537414C2 (en)
FI (1) FI63074C (en)
FR (1) FR2286232A1 (en)
GB (1) GB1511310A (en)
NO (1) NO145250C (en)
SE (1) SE385027B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2718305A1 (en) * 2011-06-09 2014-04-16 Biofuels Wales Limited Treatment of lignocellulosic material

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159932A (en) * 1978-01-03 1979-07-03 Peniston Quintin P Process for activating chitin by microwave treatment and improved activated chitin product
US4353890A (en) * 1979-10-24 1982-10-12 Colgate-Palmolive Company Stabilization of carrageenan-containing toothpaste
US4457908A (en) * 1979-10-24 1984-07-03 Colgate-Palmolive Company Stabilization of carrageenan-containing toothpaste
US4363671A (en) * 1980-03-18 1982-12-14 New York University Apparatus for chemical conversion of materials
US4368079A (en) * 1980-03-18 1983-01-11 New York University Apparatus for chemical conversion of materials and particularly the conversion of cellulose waste to glucose
US4304649A (en) * 1980-08-25 1981-12-08 The United States Of America As Represented By The Secretary Of Agriculture Solubilization of lignocellulosic materials
US4544596A (en) * 1984-04-18 1985-10-01 Personal Products Company Stabilized absorbent structure containing non-delignified wood pulp fibers
US5196069A (en) * 1991-07-05 1993-03-23 The United States Of America As Represented By The United States National Aeronautics And Space Administration Apparatus and method for cellulose processing using microwave pretreatment
EP0659450B1 (en) * 1993-12-22 1999-10-20 Canon Kabushiki Kaisha Process for decomposing a chloroorganic compound and for remedying environment with microorganisms
RU2139380C1 (en) * 1998-08-25 1999-10-10 Иоссель Юрий Яковлевич Cellulose manufacture apparatus
RU2145986C1 (en) * 1998-08-25 2000-02-27 Иоссель Юрий Яковлевич Method of manufacture of cellulose
JP3401554B2 (en) 1999-03-03 2003-04-28 独立行政法人森林総合研究所 Explosive strips obtained by steam explosion of wood-based materials, wood-based materials using these explosive strips as aggregates, and a method and apparatus for manufacturing the same.
US7510625B2 (en) * 1999-03-23 2009-03-31 Dynawave Corporation Device and method of using explosive forces in a contained environment
US6176970B1 (en) 1999-03-23 2001-01-23 Dynawave Corporation Device and method of using explosive forces in a contained liquid environment
US20040104003A1 (en) * 2000-11-28 2004-06-03 Biopulping International, Inc. Eucalyptus biokraft pulping process
EP1448846A4 (en) * 2001-11-09 2006-06-21 Biopulping Int Inc Microwave pre-treatment of logs for use in making paper and other wood products
CA2532346A1 (en) * 2003-07-16 2005-01-27 Fira International Limited Recycling of lignocellulose based board materials
GB2410746B (en) * 2004-02-07 2008-06-04 Univ Wales Bangor Recycling of lignocellulose based board material
FI115835B (en) * 2003-08-15 2005-07-29 Kemira Oyj leaching
FI116141B (en) * 2004-01-05 2005-09-30 Kemira Oyj Depolymerisationsförfarande
CN100335715C (en) * 2005-04-28 2007-09-05 湖北工业大学 Microwave method for preprocessing pulping raw material
FI20051145A0 (en) * 2005-11-11 2005-11-11 Kemira Oyj New pulp and process for pulping
US7815876B2 (en) 2006-11-03 2010-10-19 Olson David A Reactor pump for catalyzed hydrolytic splitting of cellulose
US7815741B2 (en) 2006-11-03 2010-10-19 Olson David A Reactor pump for catalyzed hydrolytic splitting of cellulose
US11001776B2 (en) * 2007-07-31 2021-05-11 Richard B. Hoffman System and method of preparing pre-treated biorefinery feedstock from raw and recycled waste cellulosic biomass
KR101818408B1 (en) 2009-02-11 2018-01-12 질레코 인코포레이티드 Processing biomass
US20210245392A1 (en) * 2020-02-11 2021-08-12 RF Kettle Company, LLC Ethanol-Based Extraction of Soluble Wood Components

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA454127A (en) * 1949-01-18 P. Ham Garnet Disintegration method
NL23266C (en) * 1927-05-24
US3092536A (en) * 1956-11-19 1963-06-04 George F Russell Impregnation by implosion
SE311055B (en) * 1966-10-19 1969-05-27 P Hedvall
US3535795A (en) * 1968-09-06 1970-10-27 Varian Associates Process of drying lithocarpus densiflora rehd. (tanoak) wood with radio wave energy
US3682643A (en) * 1969-07-15 1972-08-08 Lawrence H Foster Method for cooking foods using infrared radiation
SE360128C (en) * 1970-08-25 1983-08-02 Mo Och Domsjoe Ab SET TO BLAKE CELLULOSAMASSA WITH AN ACID-INHALING GAS IN THE PRESENT OF ALKALI
US3678594A (en) * 1970-12-16 1972-07-25 Bechtel Int Corp Paper making system and apparatus
US3801432A (en) * 1972-02-07 1974-04-02 Radiation Dev Co Ltd Process for subjecting wood chips to irradiation with electrons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2718305A1 (en) * 2011-06-09 2014-04-16 Biofuels Wales Limited Treatment of lignocellulosic material

Also Published As

Publication number Publication date
NO145250B (en) 1981-11-02
NO753276L (en) 1976-03-30
DE2537414A1 (en) 1976-04-22
NO145250C (en) 1982-02-10
BR7506148A (en) 1976-08-03
FI752648A (en) 1976-03-28
FR2286232A1 (en) 1976-04-23
JPS5160701A (en) 1976-05-26
SE7412207L (en) 1976-03-29
FI63074B (en) 1982-12-31
FI63074C (en) 1983-04-11
JPS5443601B2 (en) 1979-12-21
SE385027B (en) 1976-05-31
US4000032A (en) 1976-12-28
CA1056559A (en) 1979-06-19
DE2537414C2 (en) 1982-11-18
FR2286232B1 (en) 1979-06-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee